Idam pratisamskaranaya pilibanda va hadinvime dainika patamalave sanksepayak 

 - Colombo  Agrarian Research and Training Institute  1973 
 - i, 41p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ECONOMICS
<br/><br/><label>Dewey Class. No.: </label>333.1  / I21